The Exped Ultra is the lightest mat in the review and packs down to 21x10cm in its supplied stuffsack. As a result, it’s easy to tuck away in the corner of a rucksack and a good choice for high camps or multi-day trips. The low weight stems from the fabric and construction used, but also from its overall size.

I tested size M, the smallest of the three Exped Ultra Mummy models. It is very neat with quite a sharp taper into the foot end, which makes it easy to slip off whilst sleeping. Larger sizes come with more weight and a larger pack size. 

The Exped Ultra is comfortable and thick with a smooth surface, and I can sit cross-legged on it without feeling the ground. It’s warm too, with light microfibre insulation, and is usable well into colder weather. Despite the low weight the fabric feels tough, and I’ve found no signs of abrasion from either worn wooden bothy bunks, or a tent on rough grass.

There is a supplied repair kit if you do pick up a puncture. Inflation and deflation of the longitudinal baffles is straightforward using the two valves, and a separate pump bag for inflation is provided.